How to Migrate a Windows File Server with Storage Migration Service
Applies to: migrations involving Windows Server 2019, 2022 and 2025.
Storage Migration Service inventories data, copies files and security, then can cut over identity so clients keep the existing server name.
Migration requires a tested rollback and application-owner acceptance. Visit networkmanager.info for managed Windows VPS services.
Prerequisites
- Install Windows Admin Center and Storage Migration extension.
- Prepare supported source and destination.
- Verify backup and free space.
- Choose cutover and rollback windows.
Procedure
Step 1: Inventory source
Use Storage Migration Service job to scan shares, data and configuration.
Step 2: Resolve findings
Remove unsupported paths, stale shares and permission errors.
Step 3: Transfer data
Run initial copy while source remains online.
Step 4: Repeat transfer
Perform delta synchronization near cutover.
Step 5: Cut over identity
Transfer computer name and IP only in the approved window.
Step 6: Validate clients
Test shares, ACLs, applications and backup on destination.
Verification
Compare share inventory, file counts and representative hashes.
Get-SmbShare
Get-SmbShareAccess -Name Finance
Get-ChildItem D:\Shares -Recurse -File | Measure-ObjectRollback
Use SMS orchestration rollback when available or restore original name/IP to source after isolating destination. Prevent simultaneous identity use.
Operational notes
Do not delete the source until acceptance and retention requirements are complete.
Official references
Explore Netcloud24 Canada.
